"Alan McClure" wrote:

Alright, my bike currently has a 70mm head tube angle with 63 mm travel on
the fork. I mentioned in another thread that I was thinking about getting a
new fork like this one:

http://makeashorterlink.com/?J2BC12E05

or another 80mm travel fork (any suggestions for a nice price--marzocchi
maybe). Anyway, someone mentioned that most people find 71 degrees to be
about right for the head tube angle. Of course, mine is already off that
mark by 1 degree. Does anyone know how much the above fork would throw off
the angle even more? Is there any way at all to counteract that effect
without having a frame builder replace the head tube. If not, then does
anyone have any other suggestions?

The change from a 63 to 80mm shock (assuming the ride height will
change by ~15mm once sag is factored in) will be between close to
another degree (probably about 0.7-8 degrees, depending on a lot of
minor things like wheelbase).

That would put your head tube's effective angle at 69 degrees - pretty
slack, but not horribly so. I doubt you'll find the difference all
that drastic though. If it's a stiffer, better fork the result will
be worth it.

Mark Hickey
Habanero Cycles
http://www.habcycles.com
Home of the $695 ti frame